1255545122 has 32 divisors (see below), whose sum is σ = 2075673600. Its totient is φ = 565967808.

The previous prime is 1255545121. The next prime is 1255545133. The reversal of 1255545122 is 2215455521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1255545121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877904 + ... + 879332.

It is an arithmetic number, because the mean of its divisors is an integer number (64864800).

Almost surely, 2^1255545122 is an apocalyptic number.

1255545122 is a deficient number, since it is larger than the sum of its proper divisors (820128478).

1255545122 is a wasteful number, since it uses less digits than its factorization.

1255545122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210.

The product of its digits is 20000, while the sum is 32.

The square root of 1255545122 is about 35433.6721495247. The cubic root of 1255545122 is about 1078.8078758390.

The spelling of 1255545122 in words is "one billion, two hundred fifty-five million, five hundred forty-five thousand, one hundred twenty-two".